Yes, intriguing ideas as to how this is going to pan out...
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Can't Post

Azog's spirirt placed into another vessel seems possible...hence why John Rawls was at first cast as Azog and Manu Bennett's performance seems to be (at least partially) motion capture? So, Bennett for Azog in flashback and as a disembodied spirit, John Rawls as the host for Azog's spirit (Yazneg)? It could work if PJ went down this road...though it does seem as if they refer to Azog as a distinct entity having "returned" as a huge pale Orc riding a White Warg (presumably not in flashback) and not as "Yazneg" here.

IMO, it's quite possible we won't see Yazneg riding the albino Warg (as depicted here) unless he is in fact host to Azog in some form. My Top 5 Wish List for "The Hobbit"5. Legolas will surf down Smaug's neck 4. Bilbo will be revealed to a Robot 3. Naked PJ cameo as Ghan-Buri-Ghan 2. Use of not only 3D, but smell-o-vision, plus the inclusion of axes coming out of the seats and poking the audience when appropriate 1. Not only keep the claim that Thorin & Co. ran amok in Mirkwood "molesting people", but depict said incident in vivid detail!!!!!